tril·​lion | \ ˈtri(l)-yən How to pronounce trillion (audio) \

Definition of trillion

1 : a number equal to 1,000 times one billion — see Table of Numbers
2 : an indeterminately large number a trillion mosquitoes out tonight

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Other Words from trillion

trillion adjective
trillionth \ ˈtri(l)-​yən(t)th How to pronounce trillion (audio) \ adjective or noun

Examples of trillion in a Sentence

Recent Examples on the Web The rare metals on asteroids are valued in the trillions of dollars. Eric Berger, Ars Technica, 3 Apr. 2020 Representative Alexandria Ocasio-Cortez’s original proposal for a Green New Deal includes trillions in funding for Medicare for All but nothing for nuclear power. Jonah Goldberg, National Review, 27 Mar. 2020 Warren's promise to immediately cancel trillions in student loan debt is perhaps the single most famous item from any candidate here. Bonnie Kristian, TheWeek, 11 Feb. 2020 Even with no talks expected for this year, some countries have gone ahead with climate plans and pledged trillions in stimulus measures to recover from the coronavirus shock. Jess Shankleman,, 26 May 2020 Rightly so, when trillions in taxpayer dollars are at stake. Paul S. Atkins, WSJ, 28 Apr. 2020 AP Photo/John Minchillo To blunt a major recession sparked by the coronavirus pandemic, the US Federal Reserve has poured liquidity into global markets and US lawmakers have authorized trillions in economic relief spending. Tim Fernholz, Quartz, 21 Apr. 2020 That would add to the trillions of dollars already set aside by lawmakers as well as the Federal Reserve in order to assist consumers, businesses and local governments struggling due to the Covid-19 pandemic. Paul R. La Monica, CNN, 22 May 2020 When a few trillions aren't enough—Treasury Secretary Steven Mnuchin says Congress may need to pass more stimulus legislation to help out America's struggling businesses and families. Bernhard Warner, Fortune, 22 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trillion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of trillion

1690, in the meaning defined at sense 1

History and Etymology for trillion

French, from tri- + -illion (as in million)

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Time Traveler for trillion

Time Traveler

The first known use of trillion was in 1690

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Statistics for trillion

Cite this Entry

“Trillion.” Dictionary, Merriam-Webster, Accessed 13 Jun. 2021.

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More Definitions for trillion



English Language Learners Definition of trillion

: the number 1,000,000,000,000 : one thousand billion
: a very large amount or number
British, old-fashioned : the number 1,000,000,000,000,000,000 : one million million million


tril·​lion | \ ˈtril-yən How to pronounce trillion (audio) \

Kids Definition of trillion

: a thousand billions


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